Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
July, on average, is the warmest month in Sisters, registering a high temperature of 78.8°F (26°C) and a low of 49.6°F (9.8°C).Humidity
July and August, with an average relative humidity of 53%, are the least humid months in Sisters.Rainfall
July is the month with the least rainfall in Sisters. Rain falls for 5 days and accumulates 0.35" (9mm) of precipitation.Snowfall
In Sisters, snow does not fall in June through August.Daylight
In July, the average length of the day is 15h and 7min.On the first day of July, sunrise is at 5:26 am and sunset at 8:53 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 8:31 pm PDT.
Sunshine
July has the most sunshine of the year, with an average of 12h of sunshine.UV index
July is the month with the highest UV index, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: In July, a daily UV index of 6 turns into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What is the hottest time of year in Sisters?
What is the average July temperature in Sisters?
What is the least humid month in Sisters?
What is the average humidity in July in Sisters?
What is the driest month in Sisters?
How many days does it rain in July in Sisters?
When it does not snow in Sisters?
What is the average length of the day in July in Sisters?
What time are sunrise and sunset in July in Sisters?
What month has the most sunshine in Sisters?
How many hours of sunshine does Sisters have in July?
What is the month with the highest UV index in Sisters?
How high is the UV index in July in Sisters?
Average temperature in July
Sisters, OR
- Average high temperature in July: 78.8°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is December (36.5°F).
- Average low temperature in July: 49.6°F
The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is December (24.8°F).
Average pressure in July
Sisters, OR
- Average pressure in July: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed in July
Sisters, OR
- Average wind speed in July: 4.9mph
The windiest month (with the highest average wind speed) is February (6.1mph).
The calmest months (with the lowest average wind speed) are August and September (4.8mph).
Average humidity in July
Sisters, OR
- Average humidity in July: 53%
The month with the highest relative humidity is December (84%).
The months with the lowest relative humidity are July and August (53%).
Average rainfall in July
Sisters, OR
- Average rainfall in July: 0.35"
The wettest month (with the highest rainfall) is January (3.31").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in July
Sisters, OR
- Average rainfall days in July: 5 days
The month with the highest number of rainy days is March (16.9 days).
The month with the least rainy days is July (5 days).
Average snowfall in July
Sisters, OR
- Average snowfall in July: 0"
The month with the highest snowfall is February (13.74").
The months with the least snowfall are June, July and August (0").
Average snowfall days in July
Sisters, OR
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in July /
Average sunshine in July
Sisters, OR
- Average daylight in July: 15h and 1min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in July: 12h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in July
Sisters, OR
- Average sunshine days in July: 23.3 days
The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is March (8.1 days).
Average UV index in July
Sisters, OR
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in July
Sisters, OR
- Average cloud cover in July: 11
The months with the most cloud cover are January, February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in July
Sisters, OR
- Average visibility in July: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Sisters, Oregon, USA
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